8869480000

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Relay Sockets

8869480000 application field and working principle

Relay sockests are a kind of mechanical control device for controlling the circuit. The principle of the relay is: when the control power (also called coil power) is applied, the electromagnetic coil produces electromagnetic force, which drives the armature to pull the contact so that the circuit is connected.When the control power is disconnected, the electromagnetic force disappears, the contact spring force makes the contact return to the power-off position, and the circuit state is disconnected. In this way, the relay can control the on and off of the circuit, allowing the current to flow from one circuit to another. There are two kinds of relays: one with door type and the other with no door type. Both are composed of coils, armatures, contacts and switches. Door type mainly consists of doors, door frames and magnetic devices, which can neatly display the contact on the door panel.When using a relay, it is necessary to choose the appropriate one with the appropriate voltage and current rating according to the needs of the process. There are three terminals for a single-pole single-throw (SPST) relay: the center pole is the common pole, the normally open contact is connected to the power source and the normally closed contact is connected to the output side. If the relay is divided into two groups, the pole in the middle of the two groups is the common pole, and the rest is the same.Different relays have different working voltages and current (also known as the rated coil power). When the dc relay requires dc working voltage, the voltage must be lower than the rated voltage, and the AC relay requires the AC working voltage to be lower than the rated coil voltage. When the coil breaks down, the dead time is added to the thread time. This is a delay caused by the inertia of the coil cutting process. Pogo terminal can usually be selected in the coil of a relay.

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